At CES 2017, ASRock showed off some of its first socket AM4 motherboards for AMD Ryzen processors and 7th generation A-Series “Bristol Ridge” APUs. The first board is the X370 Taichi which built in the ATX form-factor, featuring a 16-phase CPU VRM with high-capacity Super Alloy chokes, four DDR4 DIMM slots, and two PCI-Expres 3.0 x16 slot (x8/x8 when both are populated). The third x16 slot is electrical x4 and wired to the chipset and other two x1 slots.
For connectivity, the X370 Taichi include two USB 3.1 ports (one type-A and one type-C), ten USB 3.0 ports, 8-channel PureSound 4 onboard audio solution, gigabit Ethernet with an Intel-made controller, and 802.11ac WLAN. Storage options include one 32 Gb/s M.2 slot, one 16 Gb/s M.2 slot, and eight SATA 6 Gb/s ports.
Next board, is the X370 Professional Gaming. This board is almost identical to the X370 Taichi. The X370 Professional Gaming comes with the Red and Black color scheme.
The third one is the AB350 Pro4. This motherboard is based on the mid-range B350 chipset, with a 9-phase CPU VRM, four DDR4 DIMM slots, one PCI-Express 3.0 x16 slot, a second x16 slot that’s electrical x4. The AB350 Pro4 also feature 7.1-channel HD audio, gigabit Ethernet, and eight USB 3.0 ports (of which one is type-C), and storage options that include one 32 Gb/s M.2 slot, a 16 Gb/s M.2 slot, and six SATA 6 Gb/s ports.
The AB350 Gaming K4 is identical to the AB350 Pro4, but with Red and Black color scheme.
Last two boards are the A350M Pro4 and the AB320M Pro4 Micro-ATX board. The two boards feature same PCB design with the micro-ATX form factor and 9-phase CPU VRM but differ with the chipset – A320 and B350. Also, both boards come with same connectivity one PCI-Express 3.0 x16, one x16 (electrical x4) slot, and one x1, making up the expansion area; storage features that include one 32 Gb/s M.2, one 16 Gb/s M.2, and four SATA 6 Gb/s ports. 7 USB 3.0 ports (including a type-C port), 7.1-channel HD audio, and a Gigabit Ethernet port. The AB350M Pro4 will support for CPU overclocking.